John k



(No Model.)

J. K. VANDERBURGH.

, SEPARATING THE SEDIMENTS, &c.,. FROM THE SAGGHARINEJUIGE 0F SORGHUM.

Patented Apr; 17,1883.

UNITED STATES PATENT FFICE.

JOHN K. vasnnnnunen, or MARSHFIELD, .onneon.

'SEPARATING THE SEDIMENTS, &c., FROM THE SACCHARINE JUICE OF-SOilGHUM.

SPECIFICATION forming part of Letters Patent No. 275,963, dated April 17, 1883. 1

Application filed January 17, 1883. (No model.)

To all whom it may concern Beitknown that I, JOHN K.VANDERBURGH, ot"Mar'shfield,countyof Coos, State of Oregon, have invented an Improvement in Separating the Sediments and Suspended Impurities from the SaccharineJuice of Sorghum; and I hereby declare the following to be a full,clear,'and

exact description thereof.

My Invention relates to a new and useful process of and apparatus for separating the sediments, consisting of vegetable matter, insolubleearthycompounds,andother-suspended impurities, from the-saccharine juice of sorghum, whereby the resultant juice will be pure enough to readily granulate and form a large percentage of sugar.

My apparatus consists. in an ordinary evaporator in which one or'more compartments are formed at its head by transverse partitions or diaphragms, the tops of which are below the level of the sides of the evaporator. In these compartments 1 may place removable perforated receiving-pauses I shall hereinafter explain.

My process consists in admitting the pressed juice into the compartment, or, if there be more than one, into the first of the compartments at the head of the evaporator, heating,

' it to the temperature of 210 Fahrenheit, (the usual skimming process taking place mean-- while,) and allowing the top or pure juice to flow over the depressed top of the partition into the next compartment or into the main body of the evaporator, as the case may vbe.

During the heating process the heavy'sedi ments of all descriptions sink and cannot flow over as suspensions into the next compartment, but must remainin the first compartment, from which they may readily be removed, the main object being gained of removing the deposits from the juice at the beginning of the opera tion of making sirup or sugar. The presence impurities must be wholly removed from the juice and at the first period of the operation.

present the sugar will not granulate. .These Referring to the accompanying drawings,

Figure 1 is a perspective view of my apparatus. Fig. 2 is a longitudinal vertical section.

- Let A represent any form orkindof boileror evaporator, which may be supposed to be in proper relation with a suitable t'urnace,(not here shown,) whereby the necessary heat may be supplied. In one end of the evaporator, which, because of the liquid being suppliedfrom that end, is called vthe head, there are hereshown two compartments, B. B, formed by the partitions or diaphragms G C. These partitions are pot quite as high as the sides of the evaporator, as' will be seen. I may have a single compartment or a numberof them; but the whole of them should not occupy more than about a fourth of the length of the evaporator 'in order to provide sufiicient space for the reception of the pure juice. In the compartments may be hung perforated pans D, which may be removed when necessary.

. The juice, when pressed from the cane, is

fed in the usual manner to the evaporator at its head. It enters the first compartment, 15, and is heated to atemperature of 210 Fahrenjheit. Under this temperature the impurities,

which are heavy, sink in the compartment and are caughtvin the pans. The light and pure juice, rising to the top, will flow over the top of the partition 0, the supply being kept up. In the compartment B it undergoes the same operation, and flows over the partition 0 into the main body of the evaporator as comparatively pure juice. The impurities which rise to the surface as scum must be removed during' the process in the usual manner; but the heavyimpuritiesofallkinds,uuder theinfluence of the heat, are'separated from the juice, and, sinking, remain behind in the compartments, so that thejuice in the foot of the evaporator is free of them and will granulate. as desired.

The pans D, when full of sediment, may be removed These, being perforated,do not confine the jiiice, but simply catch the sediments and furnish an easy means for'removing them. A single compartment at the head of the evaporator maygbe sufiioient; but if not there can be as many a! may be found necessary to perfect separation.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is.

An evaporator, A, having at its head one or several compartments, B B, formed bx transverse partitions CG, the tops of which 1 are lower than the sides of the evaporator, in lo combination with removable perforated pan or pans D, hung in said compartments, substantially as and for the purpose herein described. In witness whereof I hereunto set my hand.

JOHN K. VANDERBURGH.

Witnesses: v

-M. STONE,

A. M. CRAWFORD. 

